Implement hashCode methods for DSML elements implementing "equals"
Current status
Some EClasses in the DSML, e.g., the ModelElementLiteral, override the equals method but not the hashCode method. This is strongly discouraged by the Java API Designers since it can easily cause inconsistent behavior, e.g., in sort algorithms.
Resolution
Implement hashCode methods where there are equals methods and align them with the logic of these methods.
(from redmine: issue id 3253, created on 2018-01-29)